<template>
  <el-dialog
    width="500px"
    title="员工导入"
    :visible="showExcelDialog"
    @close="$emit('update:showExcelDialog', false)"
  >
    <el-row type="flex" justify="center">
      <div class="upload-excel" @dragover.prevent @drop.prevent="handleDrop">
        <input
          ref="excel-upload-input"
          class="excel-upload-input"
          type="file"
          accept=".xlsx, .xls"
          @change="handleFileChange"
        >
        <div class="drop">
          <i class="el-icon-upload" />
          <el-button type="text" @click="getTemplate()">下载导入模板</el-button>
          <span>
            将文件拖到此处或
            <el-button type="text" @click="handleUpload()">点击上传</el-button>
          </span>
        </div>
      </div>
    </el-row>
    <el-row type="flex" justify="end">
      <!-- update:props属性名，值 直接修改 .sync修饰符的属性值 -->
      <el-button
        size="mini"
        type="primary"
        @click="$emit('update:showExcelDialog', false)"
      >取消</el-button>
    </el-row>
  </el-dialog>
</template>
<script>
import { getExportTemplateApi, upExcel } from '@/api/employee'
import fileSaver from 'file-saver'
export default {
  props: {
    showExcelDialog: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {}
  },
  created() {},
  methods: {
    // 下载样式表格
    async getTemplate() {
      const res = await getExportTemplateApi()
      console.log('cehgnong ')
      fileSaver.saveAs(res, '样式表.xlsx')
    },
    // 点击上传
    handleUpload() {
      this.$refs['excel-upload-input'].click()
    },
    async handleFileChange(val) {
      const res = val.target.files
      if (res.length > 0) {
        // 上传文件图片之类的用到 new FormData() 这个方法  .append("名称",值)
        const data = new FormData()
        // file:  file类型
        data.append('file', res[0]) // 将文件添加到formdata中
        try {
          await upExcel(data)
          this.$message.success('导入成功')
          this.$emit('uploadSuccess') // 通知父组件 上传成功 重新请求数据
          this.$emit('update:showExcelDialog', false) // 关闭弹层
        } catch (error) {
          console.log(error)
        } finally {
          //  不论成功失败都会走finally
          this.$refs['excel-upload-input'].value = ''
        }
      }
    },

    // 拖动上传
    async handleDrop(val) {
      const res = val.dataTransfer.files
      if (res.length > 0) {
        // 上传文件图片之类的用到 new FormData() 这个方法  .append("名称",值)
        const data = new FormData()
        // file:  file类型
        data.append('file', res[0]) // 将文件添加到formdata中
        try {
          await upExcel(data)
          this.$message.success('导入成功')
          this.$emit('uploadSuccess') // 通知父组件 上传成功 重新请求数据
          this.$emit('update:showExcelDialog', false) // 关闭弹层
        } catch (error) {
          console.log(error)
        } finally {
          //  不论成功失败都会走finally
          this.$refs['excel-upload-input'].value = ''
        }
      }
    }
  }
}
</script>

<style scoped lang="scss">
.upload-excel {
  display: flex;
  justify-content: center;
  margin: 20px;
  width: 360px;
  height: 180px;
  align-items: center;
  color: #697086;
  .excel-upload-input {
    display: none;
    z-index: -9999;
  }
  .btn-upload,
  .drop {
    border: 1px dashed #dcdfe6;
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 160px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .drop {
    line-height: 40px;
    color: #bbb;
    i {
      font-size: 60px;
      display: block;
      color: #c0c4cc;
    }
  }
}
</style>
